Question

What is the answer to all of these

1) 8z + 4 - 3k when z=5 and k=8 =
2) 7s - 3b + 8 - 4 when s=7 and b=4 =
3) 6k + d when k=5 and d=7 =
4) 6r - 10/r when r=5 and z=3 =
5) 7 + 3(9x - 5w) when x = 6 and w=5 =

Answer 1

1) 8 x 5 + 4 - 3 x 8
=20
2) 7 x 7 - 3 x 4 + 8 - 4
=41
3) 6 x 5 + 7
=37
4) 6 x 3 - 10/5
=16
5) 7 + 3(9 x 6 - 5 x 5)
=87x + 7
Hopefully that’s right :)